https://indypendent.org/2015/01/the-white-race-was-invented-...
https://www.theguardian.com/news/2021/apr/20/the-invention-o...
I also seem to recall a factory or trade uprising/strike in/around Europe between 1400-1700 where they basically made up whiteness to divide the laborers and get them to argue amongst themselves (successfully), but this may be apocryphal as I cannot seem to find a source.